remove the now-duplicate 0.3.3.6 stanzas

      Closes ticket 25268.

Changes in version 0.3.3.6 - 2018-05-22

  Tor 0.3.3.6 is the first stable release in the 0.3.3 series. It

  backports several important fixes from the 0.3.4.1-alpha.

  The Tor 0.3.3 series includes controller support and other

  improvements for v3 onion services, official support for embedding Tor

  within other applications, and our first non-trivial module written in

  the Rust programming language. (Rust is still not enabled by default

  when building Tor.) And as usual, there are numerous other smaller

  bugfixes, features, and improvements.

  Below are the changes since 0.3.3.5-rc. For a list of all changes

  since 0.3.2.10, see the ReleaseNotes file.

  o Major bugfixes (directory authorities, security, backport from 0.3.4.1-alpha):

    - When directory authorities read a zero-byte bandwidth file, they

      would previously log a warning with the contents of an

      uninitialised buffer. They now log a warning about the empty file

      instead. Fixes bug 26007; bugfix on 0.2.2.1-alpha.

  o Major bugfixes (security, directory authority, denial-of-service):

    - Fix a bug that could have allowed an attacker to force a directory

      authority to use up all its RAM by passing it a maliciously

      crafted protocol versions string. Fixes bug 25517; bugfix on

      0.2.9.4-alpha. This issue is also tracked as TROVE-2018-005.

  o Major bugfixes (crash, backport from 0.3.4.1-alpha):

    - Avoid a rare assertion failure in the circuit build timeout code

      if we fail to allow any circuits to actually complete. Fixes bug

      25733; bugfix on 0.2.2.2-alpha.

  o Major bugfixes (directory authorities, backport from 0.3.4.1-alpha):

    - Avoid a crash when testing router reachability on a router that

      could have an ed25519 ID, but which does not. Fixes bug 25415;

      bugfix on 0.3.3.2-alpha.

  o Major bugfixes (onion service, backport from 0.3.4.1-alpha):

    - Correctly detect when onion services get disabled after HUP. Fixes

      bug 25761; bugfix on 0.3.2.1.

  o Major bugfixes (relay, denial of service, backport from 0.3.4.1-alpha):

    - Impose a limit on circuit cell queue size. The limit can be

      controlled by a consensus parameter. Fixes bug 25226; bugfix

      on 0.2.4.14-alpha.

  o Minor features (compatibility, backport from 0.3.4.1-alpha):

    - Avoid some compilation warnings with recent versions of LibreSSL.

      Closes ticket 26006.

  o Minor features (continuous integration, backport from 0.3.4.1-alpha):

    - Our .travis.yml configuration now includes support for testing the

      results of "make distcheck". (It's not uncommon for "make check"

      to pass but "make distcheck" to fail.) Closes ticket 25814.

    - Our Travis CI configuration now integrates with the Coveralls

      coverage analysis tool. Closes ticket 25818.

  o Minor features (geoip):

    - Update geoip and geoip6 to the May 1 2018 Maxmind GeoLite2 Country

      database. Closes ticket 26104.

  o Minor bugfixes (client, backport from 0.3.4.1-alpha):

    - Don't consider Tor running as a client if the ControlPort is open,

      but no actual client ports are open. Fixes bug 26062; bugfix

      on 0.2.9.4-alpha.

  o Minor bugfixes (correctness, client, backport from 0.3.4.1-alpha):

    - Upon receiving a malformed connected cell, stop processing the

      cell immediately. Previously we would mark the connection for

      close, but continue processing the cell as if the connection were

      open. Fixes bug 26072; bugfix on 0.2.4.7-alpha.

  o Minor bugfixes (documentation, backport from 0.3.4.1-alpha):

    - Stop saying in the manual that clients cache ipv4 dns answers from

      exit relays. We haven't used them since 0.2.6.3-alpha, and in

      ticket 24050 we stopped even caching them as of 0.3.2.6-alpha, but

      we forgot to say so in the man page. Fixes bug 26052; bugfix

      on 0.3.2.6-alpha.

  o Minor bugfixes (Linux seccomp2 sandbox, backport from 0.3.4.1-alpha):

    - Allow the nanosleep() system call, which glibc uses to implement

      sleep() and usleep(). Fixes bug 24969; bugfix on 0.2.5.1-alpha.

  o Minor bugfixes (onion service, backport from 0.3.4.1-alpha):

    - Fix a memory leak when a v3 onion service is configured and gets a

      SIGHUP signal. Fixes bug 25901; bugfix on 0.3.2.1-alpha.

    - When parsing the descriptor signature, look for the token plus an

      extra white-space at the end. This is more correct but also will

      allow us to support new fields that might start with "signature".

      Fixes bug 26069; bugfix on 0.3.0.1-alpha.

  o Minor bugfixes (relay, crash, backport from 0.3.4.1-alpha):

    - Avoid a crash when running with DirPort set but ORPort tuned off.

      Fixes a case of bug 23693; bugfix on 0.3.1.1-alpha.

  o Documentation (backport from 0.3.4.1-alpha):

    - Correct an IPv6 error in the documentation for ExitPolicy. Closes

      ticket 25857. Patch from "CTassisF".

Changes in version 0.3.3.5-rc - 2018-04-15

  Tor 0.3.3.5-rc fixes various bugs in earlier versions of Tor,

  including some that could affect reliability or correctness.